2020-2025
From January 2018 to December 2024, 75% of Lassa fever confirmed cases were from Ondo (33%), Edo (31%) and Bauchi (11%).
In 2025, as of epi week 17, 87% of LF cases are from Ondo (30%), Bauchi (25%), Edo (16%), and Taraba (16%) States.
Total confirmed cases: 707
Deaths from Confirmed Cases: 135
Case Fatality Ratio: 19%
Number of Health Care Workers: 22
| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 1440 | 211 | 27 | 13% | ||||
| 2024 | 1254 | 206 | 13 | 6% | ||||
| 2023 | 1334 | 295 | 32 | 11% | ||||
| 2022 | 732 | 214 | 37 | 17% | ||||
| 2021 | 322 | 75 | 22 | 29% | ||||
| 2020 | 565 | 318 | 44 | 14% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 800 | 179 | 14 | 8% | ||||
| 2024 | 735 | 148 | 28 | 19% | ||||
| 2023 | 677 | 102 | 18 | 18% | ||||
| 2022 | 649 | 115 | 12 | 10% | ||||
| 2021 | 49 | 8 | 2 | 25% | ||||
| 2020 | 274 | 43 | 19 | 44% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 1349 | 110 | 18 | 16% | ||||
| 2024 | 1466 | 186 | 24 | 13% | ||||
| 2023 | 1821 | 265 | 32 | 12% | ||||
| 2022 | 1362 | 186 | 26 | 14% | ||||
| 2021 | 1023 | 113 | 13 | 12% | ||||
| 2020 | 1194 | 321 | 39 | 12% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 313 | 116 | 34 | 29% | ||||
| 2024 | 216 | 99 | 21 | 21% | ||||
| 2023 | 256 | 87 | 29 | 33% | ||||
| 2022 | 79 | 31 | 14 | 45% | ||||
| 2021 | 53 | 18 | 11 | 61% | ||||
| 2020 | 106 | 56 | 21 | 38% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 211 | 21 | 11 | 52% | ||||
| 2024 | 253 | 43 | 24 | 56% | ||||
| 2023 | 202 | 50 | 28 | 56% | ||||
| 2022 | 207 | 39 | 18 | 46% | ||||
| 2021 | 83 | 16 | 7 | 44% | ||||
| 2020 | 195 | 73 | 21 | 29% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 66 | 15 | 4 | 27% | ||||
| 2024 | 114 | 29 | 3 | 10% | ||||
| 2023 | 39 | 11 | 1 | 9% | ||||
| 2022 | 111 | 43 | 7 | 16% | ||||
| 2021 | 7 | 2 | 0 | 0% | ||||
| 2020 | 86 | 36 | 8 | 22% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 69 | 14 | 7 | 50% | ||||
| 2024 | 27 | 4 | 2 | 50% | ||||
| 2023 | 34 | 7 | 1 | 14% | ||||
| 2022 | 186 | 20 | 8 | 40% | ||||
| 2021 | 5 | 0 | 0 | – | ||||
| 2020 | 33 | 9 | 2 | 22% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 63 | 9 | 4 | 44% | ||||
| 2024 | 1041 | 62 | 11 | 18% | ||||
| 2023 | 143 | 36 | 3 | 8% | ||||
| 2022 | 192 | 31 | 8 | 26% | ||||
| 2021 | 18 | 6 | 0 | 0% | ||||
| 2020 | 27 | 8 | 3 | 38% | ||||
Source: NCDC |
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Any questions or suggestions? Contact us: Anaïs Legand and Antoine Chaillon
As of 2025, week 17